Water heater



i May 5, 1925. 1,536,409

' F'. L. PUTNAM WATER HEATER Filedgne 19, 192:5 2 Sheets-sheet 1 t I 42 2z. ru

[4* A i -/5 2; n Z

A -il l .-3) w' 25 L l J z l l Y 2 l :Irs w fT-lLj- YV y q 32 0 0 o 28 o o o o o 3/ O o o 0 27l 27 7` 127 g r 1401211 of A mw www agg Guo: "m14 May 5, 1925. 1,536,409

' F. L. PUTNAM WATER HEATER l Filed June 19, 1923 2 Smets-sheet 2 Patented May 5, 1925.

UNITED STATES FRANK L. PUTNAM, OF HOUSTON, TEXAS.

WATER HEATER.

Application ile .une 19, 1923.

To all whom 'it may concern:

Be it known that I, FRANK L. PUTNAM, a citizen of the United States, residing at Houston, in the county of Harris and State of Texas, have invented certain new and useful Improvements in a Water Heater, of which the following is a specification.

This invention relates to new and useful improvements in a water heater.

` One object of the invention is to provide a water heater of the character described having an improved type of water coil, consisting of an outer coil through which the water passes upwardly from the inlet, and an inner coil through which the water returns to the outlet, the coil thus passing twice through the burner flame thus subjecting the water in the coil to the heat twice before its discharge. At its upper end the coil is enlarged or flared which tends to re.- tain the heat in the burner casing and prevents it from passing too readily from the casing. The outer coil is spaced some distance out from the inner coil.

Another object of the invention is to provide at the top of the housing a coil support and a baliie plate between which the upper turns of the coil are clamped to support the coil and prevent its vibration.

A further object is to provide a water heater having a substantially conical shaped bailie, forming also a support for the coil intermediate its top and bottom, as well as a condensation plate.

A further feature resides in the provision of a water heater having an upper drip pan arranged substantially on a horizontal plane with respect to the burner opening, and of somewhat smaller diameter than the coil, and a lower drip pan arranged under the bottom, or shelf, of the housing.

A still further feature of the invention resides in the provision of a central clamp rod whereby the upper baffle plate and the upper drip pan may be clamped in position.

This invention also embodies a new form of supporting bracket specially adapted for supporting the heater on a wall.

Vith the above and other objects in view the invention has particular relation to certain novel features of construction, arrangement of parts and use an example of which is given in this specification and illustrated in the accompanying drawings, wherein Figure 1 shows a vertical sectional view of the heater.

Serial '.No. 646,296

Figure 2 shows a transverse sectional view, taken on the line 2-2 of Fig. 1.

Y Figure 3 shows a. plan view of the top bailie plate.

Figure. 4 shows a plan view of the coil support.

Figure 5 shows a plan view of the battle and condensation plate forming also a coil support.

Figure 6 shows a plan view of a supporting bracket employed, and,

Figure 7 shows a side view thereof.

In the drawings the numeral 1 designates the housing, preferably of hexagonal contour. The bottom of the housing is formed of an annular shelf 2 vhaving a central opening 3, underneath which there is a bottom drip pan l1. Said shelf declines toward its central opening` so that the drippings falling onto the shelf will run into said drip pan 4.

The top 5 of the housing is preferably conical in form and provided with a central opening 6 over which there is an annular hood 7. Formed in the under side of the shelf 2 there is an annular gas passageway 8 into which the gas supply pipe 9 is con nected, and from which the burners 10 are `supplied with gas.

The numeral 11 designates a yoke which is solid and whose respective ends have the inlet and outlet tubular connections 12 and 13. VThere is a double water coil, formed of the outer coil 14, and the inner coil 15 preferably of copper. The former is connected to the connection 12 and is coiled upwardly and is enlarged at its upper end, as shown in Figure 1 and is then continued, forming the inner coil which is connected to the outlet connection 13. There is a ringlike support 16 in the upper end of the housing having the inwardly extending supporting fingers 17 on which the enlarged upper coils lie, and a bal'lie plate 18 is located above the coil, having the radiating supporting lugs 19 which rest on the coil. A clamp rod 2() has its lo-wer end threaded through the yoke and its upper end is fitted through a central opening of the baffle plate 18, and is threaded to receive the nut 21.

There is an annular conical shaped condensation plate 22, anchored in the housing, intermediate the ends thereof, which surrounds the coil and has the arcuate brackets 22 which rest against said coil to support it. This plate also deflects the heat inwardly gage in said notches.

toward the coil, and its upper surface catches the .diippings falling t'roin the enlarged upper` turns of the coil and vaporizes the saine. This plate has a marginal upturiied rib 23 which catches and holds the surplus Water until the saine is vaporized by the heat oit' the plate.

The lower end of the lanchor rod extends beneath the yoke 11 and thevupper drip pan 24 is secured thereto. ri`his drip pan is somewhat "smaller in diameter than the diaineter oi" the Acoil and it is provided to catch the Water which condenses on, and drips i'roi'n, the coil. In caseit overflows, the overflow will fall onto the shelf 2 and then into the lower drip'pan .4. The pan 2, is located near 1the horizontal plane of the burner opening and is consequently kepthot and Will ordinarily vaporize all, oi' most of, the Water dripping into it.

The lWater enters the outer coil 14, from the inlet pipe 25, and passes up through said outer coil lll, and backthrough the inner coil 15and out through'the outlet pipe 26, thus being subjected twice to the heat of the Aburner flames.

The tlaniesare emitted from the burners at `a slight inclination above a horizontal .plane toward the coils and the -heat is retained somewhat around the inner coil 15, by the outer coil 14. rlhe heat is also defflectcd. inwardly by the plate 22 towardthe coils and is retained in the housing by the enlaigedturns of the coil, and the baiile nplate 18, at the top, thus obtaining'` the greatest heat eiiiciency.

F or supporting the heater-liave provided a novel type of support shown in detail in Figures 1, 6, and 7. In these-figures the numeral 27 designates awvall plate, Whose yupper edge has the spaceddovetailed notches 128, `28. rlhe numerals 29, 29, ,designate V.brackets of a general triangular shape, which have dovetailed catches 30, Which en- The vertical arm of each bracket rests against the Wall, and the ,horizontalarin is provided on its upper side .Withthe supportingilattop heads 31, 31.

The ,bottomof the housing hasthe tvvo depending legs, 32, 32, angular in cross section, as shown in Figure v2', Whichiitover the outer heads 31, and the bottom ofl the housing rests on said four heads Which form a substantial support therefor.

lVhat I claim is:

1. A Water heater including a housing, a ring of burners ylocated in the lower part thereof, a Water coil Within the housing Whose lower end `is approximately in the horizontal plane yof the burner nozzles, a drip pan located Within the :ring of burners beneath said coil, a inedyoke tovyvhich said coils areattached, a clamp rod attached to said yoke at lower endot ,Whichrsaid drip pan is attached, abai'lfle plate onVt'opofl the .coil to ivhichthe upper end of said lrod is connected. l

2. A Water heater includinga housing, a ring oiE burners in thehousing,' aivater conducting coil in the housing above the burners, a battle plate onsaid coil, a drip ,pan Within the ring of burners lbeneath the coil, an anchor rod secured ,at its upper end to said plate and to the lower endrofivh'ich the drip pan is attached, ayoke connectinglsa'id coils to 1Whichsaidrod is anchored.

3. A water heater including` a housing, a single water conducting 'coil in the housing, formed of two series of turns, oneseries being located Within theotlier, a top baille plate located on the coil, said coil being widened at the top by the vformation of additional turns, supporting means carried by the housing` and extending underneathwsaid ,widened portion, a iixed yoke into which the lower ends of the coil'A are connected, a clamp rod connected at its upper end to said `battle plate, a drip pan attached to the lower end of said rod beneath said coil, said rod being anchored to said yoke.

1n testimony ,whereof I have signed Vmy name to this specification in the presence of twoI subscribing Witnesses.

FRANK L. PUTNAM. 

